Block
1st Degree AV Block
Every P conducted, but PR > 200 ms. Usually benign.
LEAD II · 25 mm/s1° AVB
Characteristics
- PR interval
- > 200 ms, constant
- Conduction
- 1:1
Common causes
- Increased vagal tone
- AV nodal drugs
- Ischemia
ACLS treatment
- 1Usually none. Treat underlying cause.